Part 599

Pro"pi*dene (?), n. [Propyl + ethylidene.] (Chem.) The unsymmetrical hypothetical hydrocarbon radical, CH3.CH2.CH, analogous to ethylidene, and regarded as the type of certain derivatives of propane; -- called also propylidene.

Prop`i*na"tion (?), n. [L. propinatio. See Propine.] The act of pledging, or drinking first, and then offering the cup to another. [Obs.] Abp. Potter.

Pro*pine" (?), v. t. [L. propinare, Gr. &?;; &?; before + &?; to drink.]

1. To pledge; to offer as a toast or a health in the manner of drinking, that is, by drinking first and passing the cup. [Obs.]

The lovely sorceress mixed, and to the prince Health, peace, and joy propined.

C. Smart.

2. Hence, to give in token of friendship. [Obs.]

3. To give, or deliver; to subject. [Obs.] Fotherby.

Pro*pine" (?), n.

1. A pledge. [Obs. or Scot.]

2. A gift; esp., drink money. [Obs or Scot.]

Pro"pine (?), n. [Propyl + ethine.] (Chem.) Same as Allylene.

Pro*pin"qui*ty (?), n. [L. propinquitas, from propinquus near, neighboring, from prope near.]

1. Nearness in place; neighborhood; proximity.

2. Nearness in time. Sir T. Browne.

3. Nearness of blood; kindred; affinity. Shak.

Pro"pi*nyl (?), n. [Propine + -yl.] (Chem.) A hydrocarbon radical regarded as an essential residue of propine and allied compounds.

Pro"pi*o*late (?), n. A salt of propiolic acid.

Pro`pi*ol"ic (?), a. [Propionic + tetrolic.] (Chem.) Pertaining to, or designating, an organic acid (called also propargylic acid) of the acetylene or tetrolic series, analogous to propionic acid, and obtained as a white crystalline substance.

Pro"pi*o*nate (?), n. (Chem.) A salt of propionic acid.

Pro"pi*one (?), n. (Chem.) The ketone of propionic acid, obtained as a colorless fragrant liquid.

Pro`pi*on"ic (?), a. [Proto- + Gr. pi`wn fat.] (Chem.) Pertaining to, derived from, or designating, an organic acid which is produced in the distillation of wood, in the fermentation of various organic substances, as glycerin, calcium lactate, etc., and is obtained as a colorless liquid having a sharp, pungent odor. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel.

Pro"pi*o*nyl (?), n. (Chem.) The hypothetical radical C3H5O, regarded as the essential residue of propionic acid and certain related compounds.

||Prop`i*the"cus (?), n. [NL., fr. Gr. &?; before, for + &?; ape.] ||(Zoˆl.) A genus including the long-tailed, or diadem, indris. See ||Indris.

Pro*pi"ti*a*ble (?), a. [L. propitiabilis.] Capable of being propitiated.

Pro*pi"ti*ate (?), v. t. [imp. & p. p. Propitiated (?); p. pr. & vb. n. Propitiating.] [L. propitiatus, p. p. of propitiare to propitiate, fr. propitius favorable. See Propitious.] To appease to render favorable; to make propitious; to conciliate.

Let fierce Achilles, dreadful in his rage, The god propitiate, and the pest assuage.

Pope.